//二维数组前缀和

#include<iostream>
#include<vector>
using namespace std;

int main(){
    //输入数据
    int n = 0, m = 0, q = 0;
    cin >> n >> m >> q;
    vector<vector<int>> arr(n + 1, vector<int>(m + 1));

    for (int i = 1; i <= n;i++){
        for (int j = 1; j <= m;j++){
            cin >> arr[i][j];
        }
    }

    //预处理二维前缀和数组
    vector<vector<long long>> dp(n + 1, vector<long long>(m + 1));

    for (int i = 1;i<=n;i++){
        for (int j = 1; j <= m;j++){
            dp[i][j] = dp[i - 1][j] + dp[i][j - 1] + arr[i][j] - dp[i - 1][j - 1];
        }
    }

    //使用二维前缀和数组
    while(q--){
        int x1 = 0, y1 = 0, x2 = 0, y2 = 0;
        cin >> x1 >> y1 >> x2 >> y2;
        cout << dp[x2][y2] - dp[x1 - 1][y2] - dp[x2][y1 - 1] + dp[x1 - 1][y1 - 1] << endl;
    }

    return 0;
}